Pumping apparatus with secure loading features
First Claim
1. An enteral feeding pump for use with a feeding set having a conduit to deliver a supply of liquid nutrient to a patient and a safety interlock device associated with the conduit, the enteral feeding pump comprising:
- a pumping device operable to act on the feeding set to drive flow of the fluid in the feeding set;
a control system for controlling operation of the pumping device;
a source of infrared radiation operatively connected to the control system of the pump, the control system being configured to intermittently energize the source of infrared radiation to emit infrared radiation in a direction for striking the safety interlock device of the feeding set when mounted on the pump, the propagation of infrared radiation being capable of being affected by the safety interlock device;
a first detector mounted on the pump in an alcove formed by the pump to shield the first detector from ambient electromagnetic radiation, the first detector being located relative to the source of infrared radiation so that infrared radiation emitted from the first source will not impinge upon the first detector unless propagation of the infrared radiation emitted from the source is affected by the safety interlock device, the first detector being operatively connected to the control system and arranged for receiving said infrared radiation when its propagation from the source of infrared radiation is affected by the safety interlock device, the first detector providing an indication to the control system that the pump set conduit is properly positioned in the pump;
a source of visible light operatively connected to the control system of the pump, the control system being configured to intermittently energize the source of visible light for emitting visible light in a direction for striking the safety interlock device of the feeding set, the visible light being capable of being filtered out by the safety interlock device;
a second, visible light detector mounted on the pump in an alcove formed by the pump to shield the second detector from ambient electromagnetic radiation, the second detector being operatively connected to the control system and arranged for receiving visible light from the source of visible light when the feeding set is not properly positioned on the pump for use in verifying detection of the feeding set in the proper position by the first detector.
5 Assignments
0 Petitions
Accused Products
Abstract
A pumping apparatus and pump set for use to deliver a supply of liquid to a patient. The feeding set has a conduit for the nutrient liquid and a safety interlock device associated with the conduit. The pumping apparatus has a pumping device and a control system for controlling operation of the pump. An electromagnetic radiation source is operatively connected to the control system of the pump for emitting an electromagnetic radiation signal in a direction for striking the safety interlock device of the feeding set. The safety interlock device being adapted to affect the direction of the electromagnetic radiation. An electromagnetic radiation detector is operatively connected to the control system for receiving the electromagnetic radiation signal when the direction is affected by the safety interlock device, and provides an indication to the control system that the feeding set conduit is properly positioned in the feeding pump.
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Citations
45 Claims
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1. An enteral feeding pump for use with a feeding set having a conduit to deliver a supply of liquid nutrient to a patient and a safety interlock device associated with the conduit, the enteral feeding pump comprising:
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a pumping device operable to act on the feeding set to drive flow of the fluid in the feeding set;
a control system for controlling operation of the pumping device;
a source of infrared radiation operatively connected to the control system of the pump, the control system being configured to intermittently energize the source of infrared radiation to emit infrared radiation in a direction for striking the safety interlock device of the feeding set when mounted on the pump, the propagation of infrared radiation being capable of being affected by the safety interlock device;
a first detector mounted on the pump in an alcove formed by the pump to shield the first detector from ambient electromagnetic radiation, the first detector being located relative to the source of infrared radiation so that infrared radiation emitted from the first source will not impinge upon the first detector unless propagation of the infrared radiation emitted from the source is affected by the safety interlock device, the first detector being operatively connected to the control system and arranged for receiving said infrared radiation when its propagation from the source of infrared radiation is affected by the safety interlock device, the first detector providing an indication to the control system that the pump set conduit is properly positioned in the pump;
a source of visible light operatively connected to the control system of the pump, the control system being configured to intermittently energize the source of visible light for emitting visible light in a direction for striking the safety interlock device of the feeding set, the visible light being capable of being filtered out by the safety interlock device;
a second, visible light detector mounted on the pump in an alcove formed by the pump to shield the second detector from ambient electromagnetic radiation, the second detector being operatively connected to the control system and arranged for receiving visible light from the source of visible light when the feeding set is not properly positioned on the pump for use in verifying detection of the feeding set in the proper position by the first detector. - View Dependent Claims (2, 3, 4)
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5. An enteral feeding pump for use with a feeding set having a conduit to deliver a supply of liquid nutrient to a patient and a safety interlock device associated with the conduit, the enteral feeding pump comprising:
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pumping means operable to act on the feeding set for driving flow of the fluid in the feeding set;
control means for controlling operation of said pumping means;
first source means for emitting infrared radiation, said first source means being operatively connected to the control means of the pump, said control means being configured to intermittently energize said first source means to emit infrared radiation in a direction for striking the safety interlock device of the feeding set when mounted on the pump, the propagation of infrared radiation being capable of being affected by the safety interlock device;
first detector means for detecting infrared radiation from said first source means, said first detector means being mounted on the pump in an alcove formed by the pump to shield the first detector means from ambient electromagnetic radiation, said first detector means being located relative to said first source means so that infrared radiation emitted from said first source means will not impinge upon said first detector means unless propagation of the infrared radiation emitted from said first source means is affected by the safety interlock device, said first detector means being operatively connected to said control means and arranged for receiving said infrared radiation when its propagation from said first source means is affected by the safety interlock device, said first detector means providing an indication to said control means that the pump set conduit is properly positioned in the pump;
second source means for emitting visible light, said second source means being operatively connected to said control means of the pump, said control means being configured to energize said second source means for emitting visible light in a direction for striking the safety interlock device of the feeding set, the visible light being capable of being filtered out by the safety interlock device;
second detector means for detecting visible light from said second source means, said second detector means being mounted on the pump in an alcove formed by the pump to shield said second detector means from ambient electromagnetic radiation, said second detector means being operatively connected to said control means and arranged for receiving visible light from said second source means when the feeding set is not properly positioned on the pump for use in verifying detection of the feeding set in the proper position by said first detector means.
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6. A pumping apparatus for use with a pump set having a conduit to deliver a supply of fluid to a patient and a safety interlock device associated with the conduit, the pumping apparatus comprising:
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a pumping device operable to act on the pump set to drive flow of the fluid in the pump set;
a control system for controlling operation of the pumping device;
a source of electromagnetic radiation operatively connected to the control system of the pumping apparatus for emitting electromagnetic radiation in a direction for striking the safety interlock device of the pump set, the electromagnetic radiation being of a wavelength selected so that the safety interlock device can affect the propagation of the electromagnetic radiation;
a first electromagnetic radiation detector operatively connected to the control system and arranged for receiving said electromagnetic radiation when its propagation from the source of electromagnetic radiation is affected by the safety interlock device, and providing an indication to the control system that the pump set conduit is properly positioned in the pumping apparatus;
a second electromagnetic radiation detector operatively connected to the control system and arranged for receiving electromagnetic radiation when the pump set conduit is not properly positioned on the pumping apparatus for use in verifying detection of the pump set conduit in the proper position by the first detector. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A pumping apparatus and pump set for use to deliver a supply of liquid to a patient, the pump set comprising a conduit for the liquid and a safety interlock device associated with the conduit, the pumping apparatus comprising:
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a pumping device operable to act on the pump set to drive flow of the liquid in the pump set;
a control system for controlling operation of the pumping device;
at least two sensors operatively connected to the control system of the pumping apparatus, a first of said sensors being adapted for identifying the safety interlock device in a loaded position of the device and a second of said sensors being adapted for detecting a fault condition associated with positioning of the safety interlock device. - View Dependent Claims (22, 23, 24, 25)
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26. A pumping apparatus for use with a pump set having a conduit to deliver a supply of fluid to a patient and a safety interlock device associated with the conduit, the pumping apparatus comprising:
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a pumping device operable to act on the pump set to drive flow of the fluid in the pump set;
a control system for controlling operation of the pumping device;
a source of electromagnetic radiation operatively connected to the control system of the pumping apparatus for emitting electromagnetic radiation in a direction for striking the safety interlock device of the pump set, the electromagnetic radiation selected so that the safety interlock device can affect the propagation of the electromagnetic radiation;
a first electromagnetic radiation detector operatively connected to the control system and arranged for receiving said electromagnetic radiation when its propagation from the source of electromagnetic radiation is affected by the safety interlock device properly positioned on the pumping apparatus;
a second electromagnetic radiation detector operatively connected to the control system and arranged for receiving said electromagnetic radiation from the source of electromagnetic radiation. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A pumping apparatus for use with a pump set having a conduit to deliver a supply of fluid to a patient and a safety interlock device associated with the conduit, the pumping apparatus comprising:
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a pumping device operable to act on the pump set to drive flow of the fluid in the pump set;
a control system for controlling operation of the pumping device;
a source of electromagnetic radiation operatively connected to the control system of the pumping apparatus for emitting electromagnetic radiation in a direction for striking the safety interlock device of the pump set;
a first electromagnetic radiation detector operatively connected to the control system and arranged for receiving said electromagnetic radiation when its propagation from the source of electromagnetic radiation is affected by the safety interlock device properly positioned on the pumping apparatus;
a second electromagnetic radiation detector operatively connected to the control system;
wherein the control system is operable to control the source of electromagnetic radiation and the first detector to activate intermittently, and to permit activation of the pumping device only after electromagnetic radiation from the source is detected by the first detector. - View Dependent Claims (41, 42, 43, 44, 45)
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Specification